my dr is blood testing me for my xanax hydrocodone and oxycodone on the 30th of may 2012 i am suppose to take 3 -1mg xanax 4 -750mg hydrocodone and 3 -30mg oxycodone but i dont not take all of them if i dont fail the blood test right then he will kick me off completly he said so my question is when do i have to start taking them to have enough in my blood i just take them when i need them some days all of them some days 1 or 2 please help me i have endometriosis spinal stenosis artheritis carpal tunnel and nerve damage cant afford to lose my meds plus i like the office i go to thank u for ur time